The Handley Page Type S, or HPS-1 was a prototype British carrier-based fighter developed for the United States Navy in the early 1920s.

In 1921 the United States Navy drew up a specification for a single-seat fighter aircraft capable of operating either as a landplane from its aircraft carriers or from the water as a seaplane, seeking designs from both American and European companies.

The British aircraft manufacturer Handley Page, which had recently developed the leading edge slot, realised use of slots and flaps could allow a high-speed monoplane to fly at the low speeds needed for carrier operations with a much higher wing loading than a normal biplane, and decided to develop an aircraft to meet this requirement.

The airframe was a plywood monocoque, with the fuselage capable of being broken into two sections for storage on board ship.

[4] The second prototype was built with its wings fitted with six degrees of dihedral, flying in February 1924.